A.8 fl-net data format, 1 ) overview of fl-net data format – Yaskawa JAPMC-MC2303-E User Manual

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Appendix A Network System Definition

A.8 FL-net Data Format

A-5

App

Appendices

A.8

FL-net Data Format

( 1 ) Overview of FL-net Data Format

Data to be transferred via FL-net is encapsulated in each layer of the communication protocol as shown in the follow-
ing figure.

Next, the following shows FL-net data (of one frame) that can be observed on communication lines. In this example,
128-byte cyclic data is transferred.

Ether header

IP header

UDP header

Trailer

FL-net data

IP header

UDP header

FL-net data

UDP header

FL-net data

User data

1,024 bytes

UDP segment

IP datagram

Ethernet frame

0000

0010

0020

0030

0040

0050

0060

0070

0080

0090

00A0

00B0

00C0

00D0

00E0

00F0

ADDR HEX

FL- net header

U ser data

IP header

Ether net header

U D P header